Abstract: A static mixer may include a housing having an inlet and an outlet. The static mixer may also include a mixing element arranged within the housing. The mixing element may include a plurality of blade disk pairs arranged in crisscrossing fashion, each blade disk, of the pairs of blade disks, comprising a plurality of parallel extending and spaced apart blades. In some examples, a blade disk may include a link connecting the end of each of the plurality of parallel extending and spaced apart blades. In some examples, the link may be a ring base. In other examples, the link may be a propped tie. Alternatively or additionally, a support perch may be provided for supporting a ring base of an adjoining module.

Abstract: A cuttings processing unit may include a conveyor interface configured to interface with a mud cleaning complex to receive drill cuttings. The cuttings processing unit may further include a breaker mill module operably positioned to receive the cuttings via the conveyor interface, a cuttings tank module operably positioned beneath the breaker mill module, and a pump module operably positioned beneath the cuttings tank module. The breaker mill module may be configured to grind the cuttings into a finer composition. The cuttings tank module may be configured to agitate the finer composition and create a slurry. The pump module may be configured to move the slurry.

Abstract: A drilling rig may include a detachable, modular cellar arranged beneath a drill floor of the drilling rig. The cellar may be or include a cellar trailer and it may also be configured to house drilling equipment, such as well head equipment and/or one or more blowout preventers. The cellar trailer may provide work areas, such that the well head equipment may be prepared, tested, or generally operated within the cellar trailer. The cellar trailer may additionally be configured to provide stiffening support to the drill floor in order to mitigate deflection of the drill floor during drilling operations. The stiffening support may be provided by a shear wall extending from the cellar trailer. The cellar trailer may be towable. The cellar trailer may additionally be skiddable and/or walkable.

Abstract: The present disclosure relates to a wireline drum configured for use in a material handling system. The wireline drum may have a core extending between a pair of flanges. The core may be configured to receive a spooled wireline. Each flange may have a neck extending from an inner surface toward the core and configured to nestably engage the core. The present disclosure further relates to methods of manufacturing such a wireline drum. In some embodiments, each flange, including the flange neck, may be cast as substantially a single component. At a joint between each flange neck and the core, a V-shaped groove may be defined for receiving a weld. Each flange may be welded to the core at the V-shaped groove.

Abstract: The present disclosure relates to a modular drilling cellar configured to be arranged beneath a drill floor of a drilling rig. The cellar may have a housing for storing well head equipment and a drill floor support structure. The drill floor support structure may have a pair of support legs, each leg may have an extension portion, a column portion, and a bearing foot. Each of the extension portion and column portion may be configured to be arranged in a reading position and an operating position.

Abstract: A drill rig having a drill pipe standbuilding system. The standbuilding system may have one or more offline mouseholes, such as two offline mouseholes, a hoist arranged on a rail system, and an iron roughneck. The rail system may be arranged on the mast, such as above a racking board. The hoist may extend from the rail system, through the racking board, and toward a drill floor of the drill rig. The offline mouseholes, rail system, hoist, and iron roughneck may allow drill pipe stands to be built without interrupting or slowing drilling operations. A method of standbuilding may include arranging a first pipe section in a first mousehole, arranging a second pipe section in a second mousehole, coupling a third pipe section to the second pipe section to form a double stand, and coupling the second pipe section to the first pipe section to form a triple stand.

Abstract: A method for treating drilling mud includes directing a first flow portion of a flow of drilling mud to a decanter centrifuge, directing a second flow portion of the flow of drilling mud to a solids particle recovery hopper, and separating an underflow from the first flow portion with the decanter centrifuge, wherein the underflow includes first solids particles having a first density. The underflow is directed to the solids particle recovery hopper, the underflow is mixed with the second flow portion in the solids particle recovery hopper, and a flow of the mixed underflow and second flow portion is directed from the solids particle recovery hopper to an active mud tank.

Abstract: Disclosed are tower erection systems and tower climbing systems and associated methods of operation. A tower erection system, in accordance with various embodiments, includes a ground-installed lifting structure, and a lifting frame configured to latch onto individual tower sections and traveling vertically inside the ground-installed lifting structure, lifted by a winch-and-cable or other lifting mechanism. Using this system, a tower may be assembled from multiple sections from the top down. A tower climbing system, in accordance with various embodiments, includes upper and lower climbers that can latch onto the lateral surface of a tower and a lifting mechanism that can move the climbers vertically relative to each other. The system can be used to carry a crane or other heavy equipment up and down along the tower. A climbing crane may be used, for example, during tower construction, or to reach the top of the tower for maintenance or repair.

Abstract: A stator for a progressive cavity pump may include a containment element with an inner surface and a casing. The casing may be arranged within the containment element, be generally isolated from the inner surface of the containment element, and define a stator cavity adapted for receiving a progressive cavity pump rotor and for accommodating substantially free rotation of the progressive cavity pump rotor therein.